#include<bits/stdc++.h>
using namespace std;
using ll=long long;

int main(){
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  ll A,B,C;
  cin>>A>>B>>C;
  cout<<((A*B+B*C+C*A)*2>A*B*C?2:3)<<'\n';
}